@CHARSET "UTF-8";
#btn1
{
	width:300px;
	height:300px;
	background-color: #12ffaa;
}
#btn2
{
	width:100px;
	height:200px;
	background-color: #ff12aa;
}
#btn3
{
	width:200px;
	height:200px;
	background-color: #aaff12;
}